Luksika Kumkhum defeated Su Jeong Jang 6-4 6-4 in the Tokyo qualifying round 2 on hard. The upset overturned the form book — Su Jeong Jang came in leading the head-to-head 1–0. Luksika Kumkhum claimed a first win over Su Jeong Jang in two meetings, narrowing the head-to-head to 1–1.
| Date | Tournament | Round | Surface | Winner | Score |
|---|---|---|---|---|---|
| 2017-02-10 | Fed Cup G1 RR: THA vs KOR | RR | hard | Su Jeong Jang | 5-7 6-2 6-2 |
Averages over each player's completed matches in the selected window (144 vs 200). ATP, WTA & Challenger.
Performance in the biggest moments — break points, deciding sets and tiebreaks (0–100, higher is better). About
Each player's serve crossed against the other's return, converted to expected hold of serve. Recent completed matches, ATP, WTA & Challenger. About